Apparatus for forming receptacles from pulp.



G. F. HOMBURG. APPARATUS FOR FORMING REGEPTAGLBS mom PULP.

I I APPLICATION FILED SEPT. 6, 1907. 954,962; Patented Apr. 12, 1910.

8 SHEETS-SHEET 1.

"0.,1. HOMBURG. APPARATUS FOR FORMING R'EGEPTAGLES FROM PULP.

' V APPLICATION FILED SEPT. 5, 1907. v r 954,962, Y I Patented Apr. 12, 1910.

wanna-sum '2.

0. F. HOMBURG.

APPARATUS FOR FORMING REGBPTAOLES PROM PULP.

APPLICATION FILED BEPT.5, 1907.

Patented Apr. 12, 1910.

8 SHEETS-SHEET. 3.

- -section of jsame taken on line 2 2 of Fig. 7 3, showing [the table and cams in their 30 To all whom 'it may cowern:

.useful Improvements in -Apparatus for .movable parts, thus making it possible to provide -a dralnage system by which the water in the pulp can be easilyand quickly drained or discharged during the formation positions; Also the cone is shown in its 5 taken on lineB 3 of Fig. 2, showing the 85 ments; and Fig. 6 -is aplan and section of cylindrical opening-2, extending part way '1'.

UN1TED s'rA Es PATENT OFFICE.

'cHaI's'rAIN r. HOMBURG, or CHICAGO, ILLINOIS, ASSIGNOR' 'ro onLLU osE. PACKAGE MANUFACTURING (30., A CORPORATION OF ILLINOIS.

APPARATUS FOR; FClRMING RECEP'IACLES FROM PULP.

Be it known that I, CI-IRISTAIN F. HOM- BURG, a citizen of the UnitedStates, residing at Chica o, in the county of Cook and State of Illinois, have invented new and Forming Receptacles from Pulp, of which the following is a specification.

This invention relates to an apparatus for formingreceptacles from pulp, and. the object is to provide a machine of'this char; acter which has a minimum number of form receptacles very rapidly. A 'further object of the invention is to of a receptacle, thus enabling the use of pulp containing much less moisture than was heretofore necessary.-

In the accompanying drawings, Figure 1 is .a side elevation of my improved apparatus for forming receptacles from pulp, showing the table, carrying the bottom forming'die, in itslowered position and the cone in its raised position; Fig. 2 is'avertical lowered and raised positions, and the segments in their extended and" compressed ow r posi tion;) Fig. 3 is"a cross-sect 1on segments 'in their extended and compressed positions, with the cone removed; F1 .4 is awdetail view of one of the guide, blocks; Fig. 5 is a detail view-of one. of the segthebottomforming die] I The reference numeral '1' indicates-the'base of themachine, which is provided with the rough said base. Standards 3 are: ri idly" secured to the base 1. Intermediate '0 .the standards .3 is secured the lower stationary plate 4-and the upper stationary plate 5.

6, and t e lower plateis provided with open-. ing 7. The lower plate. is also provided with a 'seriesfof; openings 8-. Disposed between the upper plate v5' and the lower" late 4 are a series of wedge sl'i'pedi e blocks 9, which. taper inwardly and are arranged Specification of Letters Patent. Patented T- Application filed- September 5, 1907. Serial No. 391,488. r

segments,

around the openings intermediate of the upperand lower plates. Disposed between the Apr. 12, 1910.

guide blocks 9 are the segments .10. \Vhen the guide blocks 9 and the segments'10 are arranged in position between'the u per and lower plates, the same form a circu ar mold. The segments 10 are so arranged between the guide blocks 9,that same can be moved inwardly and outwardly.

Cams l1 and 12 are formed on the rear surface of the segments -10 and rolls 13 and 14: are secured "therein. The rolls are atlaptedto be-loosely mountpd in said cams.

Directly behind the segments 10 are secured the stationary cam bars 15, these cam bars are rigidly secured to the upper plate 5 and the lower plate 4. The cam bars 15areprovide'd with cams 1.6 gand 'l'l' Whiohfare in direct alinement with the dams-1 1 aind- 12 on segments 10. Rolls 18 anth- 19 are-rotatablv mounted in cams 16 and 17. A movable table 20 is adapted to rest upon the upper end of hydraulic cylinder 21, this table has; rigidly secured on its 'upper' surface bottom forming die 22. The upper portion of this die extends into .openin 7 in plate 4. A plu rality of movable cam are 23, provided with the oppositely-disposedcams 24 and 25,'are arranged to come in contact with the cams formed on the segments 10 and thestation-- ary cam bar 15-. The lower ends of cam bars 23'exten'd-through o enings 8, in lowerplate 4, and are rovide with the rolls 26,

.wl1ic h rest upont e upper surface of table 20:

A plurality of braces 27 connect the upper plate 5 and the lower plate 4, The purposes of these braces are torigidly hold the said plates in position. Springs 28 are-secured to the braces27 and are connectedlto the segments 10,-their purpose being to normally --hold" the segments 10 in their extended-position. When the table 20 is moved upward the cams onthe movable cam bar 23, will engage the cams on the stationarycam bar 15 and the cams on the segments 10, thus' moving said segments inwardly. Simultaneously with the inward movement of the upwardly.

1 To the upperend-ofthe standards 3" 5 rigidly secured the plate 2.9. A cylinder 310 preferably operated by hydraulic-power,-1s'

the bottom forming die will move inder '30, and the olppdsite end thereof is aped like the frustum' "of a" cone. .Said jdi e 34'is'1hollow. andtapers slightly toward-the bottom. A valve 35 is" secured to a die 34 s formed inthe bottom of this die, this valve is held in; its closed position by gravig.- A disk 36 is secured to the upper end of 'e 34,

which has, on the under surface-thereof,

- stri in rin -37.- This rin is-held in-its PP g g g normal position by means of the tension spring 38. Air pi e 39 extends into die 34.; A semicircular race 40, whose upper end i is secured in Sguidewaysjr il, extends from is adapted to be secure is connected to the brace 40 by. means of plate 29 to di 36. A=braee:42 .issecured to p1ate'29 and the upper end of lever 43 link 44, and b means of this lever brace 40 may be move ofi-of disk'36.

The inner surface of the segments '10 are provided with l a series of longitudmal grooves or. channels 45, and inthe'lower end segments, are the openings 46; these open-,

' 47, which extends orizontally through the lower end of nt 10.

of a 'finermesh, is adaplte 10 b e segment y of each channel,- and extending through the mgsare all connected by one common duct '-A coarse -wire screen 48 is secured over the lnnersu'rface of/the segments 10, by' means of s'crew's'or bolts 49-, and a Wire screenSO, preferably d to be secured over the screen 48,. to t means of the bolts or screws 51. The purpose of the channels 45, openings 46 and ducts 47, are to afford -a proper system of draina e when thewat'er' rs pressed-out of the -pu p',dn"1fingfth e operation of forming a receptacle; and the wire screensprevent particles of the pulpjfrom lodglng in the channels or openings during said: compressing operation. A series of channels 52' re j formed on the u per surface of bott m forming die22, an. a plurality of o enings 53 extend. through the uppertsur ace of said die.- A 'coarsefscreen 541s secured upon the u per surface of the die 22, and a screen 55 o finer' 'mesh securedfover the coarse screen. The water compressed out" of the" pul rwill-be forcedthrough the openings 53 in the" die, 22. and escapes throu h groove 56; Assuming the die. 34 to be in its ralsed sitio'n, as shown in Fig; 1 of the draw-V lugs, and the segments 10 in their extended disk 36, this rigid 1y 5 position and the bottom forming die" 22 in 1ts lowered-position, the operation of the machine is as follows: The pulp is fed Into the mold, formed-by the segments and bottom forming die, in any suitable manner.-

The brace -being removedfrom the disk I 36, the die 34 is allowed to pass into the mold 9 containing the 'pulp, the brace 40 is then pushed. inwardly and allowed to 'rest'upon 1 looks die 34 its downward osition. ydraulic pressure is then applie through cylinder 21, which will thereto. This lever move the table 20 upward. This pushes cam bar 23 upward, andb reason of the cam action said segments w' 1 be moved inwardly thusfcompressing the pulp." in the mold against the die 34. Simultaneouslfwith the" mwardmovement of thesegments, the die'. 22 will be moved upward, th1s.Will compress the vpulp in the mo d against the bottom of die 34. The water ressed out of the pul will flow into the clihnnels and throng the duct 47 andout' through openin $46. If It were not for the numerous 'ohanne s and openings through which thewater can freel pass the operation of terrain ,a receptac e wo d'be considerably delaye and the recelptacle mlght be'unevenlycompressed, but w I en the water oan'pass away freely allv liablhtyof uneven compression is obviated and "the'reoeptacle can be quickly and easily formed. A further advantage of providing a proper systemef drainage is that the reeeptaele, when formed, will contain less moisture, which is an item of considerable importance in the formation- 0f receptacles from pulp. When, the hydraulic pressure is released table 20 will =move downwardly and the bottom forming die 22 and cam bars 23 will, consequently, also be lowered. The

springs 57 on the upper 'end'of cam bars 23 wlll assist "to force said bars downward quickly, and the springs 28 will'*- the'n draw thegsegments outwardly and away from the.

-wil greatly faci itate t e operation of removing the receptacle therefrom.

I'claim as v cure by Letters Patent-.-.

.1. Anappa'ratusfor formingi'a receptacle from pulp, comprising a base,'standards secured'thereon, upper and lower plates, provided' with o enin'gs intermediate thereof;

secured to said standards, a plurality of y invention, and desire to se guide blocks disposedbetween said upper and lower plates and around the openings intermediate'of said upper and lower plates, aplurality of segmentsdisposed .between said upper and lower lates and between said guide blocks, cams ormed on the outer sides of said segments, stationary cam bars,

"inovable cam-bars provided withopplositelys disposed cams, a

" on the segments an the 'stationary'cam bars,

a table, a bottom form' die carried thereby, means for raisin sai table and moving the die upwardly an the segments inward] 2. An apparatus; for forming a receptac e from pulp, comprising a base, standards sea ted to engage t e cams ments disposed. between sai upper and lower plates and arranged the openings therein,

and bottom forming die,

end of said standards,

tom forming die upward and the operable cured thereon, upper and lower plates, secured to said standards and provided with openings, a plurality of guide blocks disposed between said upper and lower plates and around the openings, a lurality of segupper and lower plates and between said uide blocks ca'ms formed on the rear sides 0 said' segments, stationary cam bars, movable cam bars, provided with oppositely-disposed cams, adapted "to engage the cams on the segments and the sta tionary cam bars, a table, a bottom forming die carried'thereby, a die adapted to be lowered into the mold formed by the segments a brace operatedby' a lever adapted to lock said cone rigidly in said mold and means formoving and bottom forming die upwardly segments inwardly and outwardly.

3. An apparatus for forming a receptacle from pulp, comprising a base, standards secured thereon, 'a plate secured to the upper upper and lower plates, provided with dpenings, a plurality of wedge shaped guide blocks disposed at predetermined intervals between said upper and the and lower plates and arranged'around' the openings therein, a plurality of segments disposed betweenthe up per and lower plates and between said guide blocks, channels formed on the inner surface of said segments, openingsextending from the lower ends of said channels and passing through said segments, said openings being connected by a duct, screens secured over said channels and openings, cams formed on the rear sides of said segments, stationary cam bars, movable cam bars, provided with oppositelydisposed cams, adapted to engage the cams on the segments. and stationary cam bars, a table, abottomforming die carried thereby, a die adapted to be lowered into the mold formed by the segments and bottom form- 1 ing'die, means for locking said die rigidly in said mold, and means for movingthe botsegments inwardly and outwardly. i 4. An apparatus. for forming a receptacle from pulp comprising a base, standards secured thereto, upper and lower plates provided with openings, a p-lurality of wedge shaped guide blocks disposed between said around a plurality of segments disposed between plates and between said guide blocks, and therebetween, channels formed on the inner surface of the segments, openings extending from the lower ends of said channels and communicating with a duct, afi'ording proper drainage for the water compressed from the pulp, screens protecting said channels and openings, cams formed on the table .apertured plates, means the upper and lower oppositely-disposed cam, adapted to engage the cams on the segments and statimiary cam bars, a table, a bottom forming die carried thereby, a die adapted to be lowered into the mold formed by the segments and bottom. forming die,- means forlocking said die rigidly in said mold, means for and aneans for moving the bottom forming die upwardly and downwardly and the segments inwardly and outwardly. j

5. An apparatus tor forming a receptacle from pulp, comprising'a base, standards secured thereto, upper and lower plates se-. cured to said standards. provided with openings, a plurality of Wedge shaped guide blocks disposed between said upper and lower plates and arranged around, the f openings'in said plates, a plurality of segments disposed between the-upper and lower plates and between said guide blocks, said segments operable by cam action, dhannels formed on the inner surface of the segments,

openings extending from the lower ends of said channelsand communicating with a \duct, aitording proper drainage for the water compressed out of the pulp, screens protecting said hannels and openings, a. table, a bottom forming die carried thereby, an inner die operated vertically, adapted to fit into the mold formed by the segments and bottom forming die, means for locking said die rigidly in saidmold, and means for moving the bottom forming die upwardly and downwardly and the segments inwardly and outwardly. g 6. In a pulp receptacle forming machine a j hollow inner forming die, enacting adjustable dies adapted to form a receptacle be tween the same and inner forming die and adapted to move outwardly from the inner die whenfthe receptacle is formed, means bearing on the top of-the receptacle, mechanism for actuating the saine to remove the receptacle from the inner die, means for ad- 11,0 mitting compressedffluid into the hollow forming die and a valve for admitting the compressed fluid-to aidinlo'osening the receptacle from the inner die. k

7. In a pulp receptacle forming machine comprising parallel forrigidly comiecting the platesyguides, die sections between the dies and positioned around the aperan inner, die, a frame 'tures in the plates, springs secured to the sections and to the rigid-connecting. means. normally holding the die sections retracted, an adjustable table, a bottom die carried thereby, cams secured to the die sections, rigid cams disposed oppositely from the cams on the die sections, vertically adjustable cam bars loosely supported on the table, and

unconnected with thecams and oppositely disposed .camssecured to each bar each adapted to engage one cam on the approprias formed an ateidie section and the rigid cam oppo site an inner rigid connecting means; cams therebetween each diesection, a rigid cam oppositely diebottom forming provided with apertures.

' ingthe plates, guides, sections between the guides and positioned around the apertures Vverticall adjustable cams between each secf 7 tion an the rigidcamsand'loosely sup the guides and positioned around'the apernormally holding thevdie section's retracted,

table, means for permitting'escape of fluid tacles an inner forming die,

therefrom.

8. In a ulp receptacle forming machine ie, a frame oomprising parallel apertured plates, means for/rigidly connect in the plates, each having an inner face shaped to afford with the adjacent sections a die and each section having anupper and a lower cam on its outer face, sprin secured tot-he sections and to the rigi conupper and lower cams on each' dle section.

ported on the table adapted to contact the appropriate cams on the sections and rigid cams for forcing the sections'inwardly. I

9, In a ulp receptacle forming machine an inner die, a frame comprising parallel apertured plates, means for rigidly connecting the'plates, guides, die sections between tures in the plates, springs secured to the sections and to the rigid 'connectingsmeans an adjustable table, a bottom die carried thereby, cams on the die sections and on the unsecured to, but actuated by the adjustable.

from the ulp as the receptacle is being 3 means aided by fluid pressure for're1noving, the receptacle after the same is formedfrom the innerdie; f v

10. In a machine for forming pulp recep: tacles an inner forming die, die section's arranged to move horizontally, meansfor normallyholding the same retracted, cams on posed from each cam on the die sections, reciprocating cam bars provided with cams," one for each section, means for reciprocating he cam bars to adjust the die sections and a r 11 In a machine for formin pulp recepa justable'sections adapted to afiord an on er' forming die cams on said sections loose su orte adapted" to engage the same, means f or si 7 between the same an simultaneously actuating the cams thereby adjusting the sections to compress pulp between the same and-inner forming die, means for automatically releasing said sections after the receptacle is formed and pneumatic means for aidi'ng in releasing there-1, ceptacle after it is formed. t 12'. In a machine forformin pulp recap tacles an inner. forming die, a justable sections adapted to afford an outer forming die, each\section grooved longitudinally and 65 provided with an aperture at the bottom of each groove, coarse and fine screensnsecured to each sect1on, ca1ns on said sections, cams multaneously actuating/the cams thereby adjusting the; sections to compress pulp between the same and inner forming die, means for automatically releasing said sections after the receptacle is formed, a die for shaping the bottom of the receptacle, means for jactuating the same, said die adapted to return to normal position by gravity-and the-bottom die provided with grooves and apertures for'permitting escape of water while the receptacles is being formed.

13. In a pulp receptacle forming machine a hollow inner jforming'die, means adapted to be adjusted onto and ofi of thesame to rigidlyhold the die in"foriningyposition, means for admitting vair pressure into the die, means for admitting the compressed air through the bottom of the hollow die, coacjzing movable dies ada ted to compress pulp inner "die form a receptacle, means for withdrawing the coactingdiesfrom the inner die, said coacting dies provided with apertures and passages for escape of fluid while the receptacle 1s being formed, means for preventing the pulp from clogging the apertures and passages and means for automatically removing the receptacle when formed, from the machine. p v

"In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses. GHRISTAI'N E. HOMBURG. 4. Witnesses: a CHARnEs W. HiLLs,

, i 'K, E, HANNAH: 

